P/2023 B3 (PANSTARRS)
メタデータ
| 項目 |
値 |
| Designation |
P/2023 B3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-09-02T19:46:49.169280Z |
| Orbit solution date (soln_date, UTC) |
2023-03-20T19:43:10Z |
| Obs used |
82 |
| NEO |
- |
| M1 |
14.700 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-01-23T10:13:08.774400Z |
| Discovery magnitude (MPC) |
21.14 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2022-12-21.0000000 |
| e |
0.12329891 |
| q (au) |
3.982887 |
| a (au) |
4.543039 |
| i (deg) |
9.163475 |
| Ω (om, deg) |
154.004785 |
| ω (w, deg) |
239.769487 |
| M (ma, deg) |
85.415628 |
等級
散乱 + 全体線形
$$
M_a = (14.589 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.589 |
| n |
2.000 |
| gf |
0.861 |
| gb |
-0.934 |
| k |
1.000 |
| δ90 |
1.000 |
| パラメータ |
記号 |
範囲 |
説明 |
| 太陽・地球距離が1 AUのときの絶対等級 |
H0 |
-5 to 20 |
彗星の固有の明るさ |
| 測光スロープパラメータ |
n |
2 to 6 |
太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 |
gf |
0.8 to 1 |
前方散乱の強さ |
| 後方散乱非対称係数 |
gb |
-1 to -0.5 |
後方散乱の強さ |
| 分配係数 |
k |
0.8 to 1 |
前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 |
δ90 |
1 to 10 |
ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
16:03:54.74 |
-12:02:13.8 |
HIP 78736 |
13.15 |
| 2026-02-03 12:00 |
16:04:11.64 |
-12:02:12.6 |
HIP 78736 |
11.29 |
| 2026-02-04 00:00 |
16:04:28.40 |
-12:02:10.7 |
HIP 78736 |
10.77 |
| 2026-02-04 12:00 |
16:04:45.02 |
-12:02:08.0 |
HIP 78736 |
11.72 |
| 2026-02-05 00:00 |
16:05:01.50 |
-12:02:04.5 |
HIP 78736 |
13.82 |
| 2026-02-05 12:00 |
16:05:17.84 |
-12:02:00.4 |
HIP 78736 |
16.62 |
| 2026-02-06 00:00 |
16:05:34.03 |
-12:01:55.4 |
HIP 78899 |
13.54 |
| 2026-02-06 12:00 |
16:05:50.09 |
-12:01:49.8 |
HIP 78899 |
10.32 |
| 2026-02-07 00:00 |
16:06:06.01 |
-12:01:43.4 |
HIP 78899 |
7.81 |
| 2026-02-07 12:00 |
16:06:21.78 |
-12:01:36.3 |
HIP 78899 |
6.78 |
| 2026-02-08 00:00 |
16:06:37.40 |
-12:01:28.4 |
HIP 78899 |
7.78 |
| 2026-02-08 12:00 |
16:06:52.88 |
-12:01:19.8 |
HIP 78899 |
10.20 |
| 2026-02-09 00:00 |
16:07:08.21 |
-12:01:10.4 |
HIP 79021 |
10.77 |
| 2026-02-09 12:00 |
16:07:23.39 |
-12:01:00.4 |
HIP 79021 |
7.83 |
| 2026-02-10 00:00 |
16:07:38.42 |
-12:00:49.5 |
HIP 79021 |
5.83 |
| 2026-02-10 12:00 |
16:07:53.30 |
-12:00:38.0 |
HIP 79021 |
5.79 |
| 2026-02-11 00:00 |
16:08:08.03 |
-12:00:25.7 |
HIP 79021 |
7.69 |
| 2026-02-11 12:00 |
16:08:22.61 |
-12:00:12.7 |
HIP 79021 |
10.49 |
| 2026-02-12 00:00 |
16:08:37.03 |
-11:59:59.0 |
HIP 79021 |
13.61 |
| 2026-02-12 12:00 |
16:08:51.30 |
-11:59:44.5 |
HIP 79021 |
16.86 |
| 2026-02-13 00:00 |
16:09:05.41 |
-11:59:29.3 |
HIP 79021 |
20.15 |
| 2026-02-13 12:00 |
16:09:19.37 |
-11:59:13.4 |
HIP 79160 |
23.35 |
| 2026-02-14 00:00 |
16:09:33.16 |
-11:58:56.7 |
HIP 79287 |
20.56 |
| 2026-02-14 12:00 |
16:09:46.80 |
-11:58:39.3 |
HIP 79287 |
17.43 |
| 2026-02-15 00:00 |
16:10:00.28 |
-11:58:21.2 |
HIP 79287 |
14.44 |
| 2026-02-15 12:00 |
16:10:13.60 |
-11:58:02.4 |
HIP 79287 |
11.66 |
| 2026-02-16 00:00 |
16:10:26.75 |
-11:57:42.9 |
HIP 79287 |
9.24 |
| 2026-02-16 12:00 |
16:10:39.74 |
-11:57:22.6 |
HIP 79287 |
7.51 |
| 2026-02-17 00:00 |
16:10:52.57 |
-11:57:01.7 |
HIP 79287 |
6.92 |
| 2026-02-17 12:00 |
16:11:05.23 |
-11:56:40.0 |
HIP 79287 |
7.70 |
| 2026-02-18 00:00 |
16:11:17.73 |
-11:56:17.6 |
HIP 79287 |
9.48 |
| 2026-02-18 12:00 |
16:11:30.05 |
-11:55:54.5 |
HIP 79324 |
10.04 |
| 2026-02-19 00:00 |
16:11:42.21 |
-11:55:30.7 |
HIP 79324 |
10.69 |
| 2026-02-19 12:00 |
16:11:54.21 |
-11:55:06.2 |
HIP 79324 |
12.03 |
| 2026-02-20 00:00 |
16:12:06.03 |
-11:54:41.0 |
HIP 79324 |
13.85 |
| 2026-02-20 12:00 |
16:12:17.68 |
-11:54:15.1 |
HIP 79324 |
15.96 |
| 2026-02-21 00:00 |
16:12:29.16 |
-11:53:48.5 |
HIP 79324 |
18.24 |
| 2026-02-21 12:00 |
16:12:40.47 |
-11:53:21.3 |
HIP 79540 |
17.51 |
| 2026-02-22 00:00 |
16:12:51.60 |
-11:52:53.3 |
HIP 79540 |
14.75 |
| 2026-02-22 12:00 |
16:13:02.56 |
-11:52:24.7 |
HIP 79540 |
12.02 |
| 2026-02-23 00:00 |
16:13:13.35 |
-11:51:55.3 |
HIP 79540 |
9.34 |
| 2026-02-23 12:00 |
16:13:23.96 |
-11:51:25.3 |
HIP 79540 |
6.69 |
| 2026-02-24 00:00 |
16:13:34.39 |
-11:50:54.6 |
HIP 79540 |
4.09 |